High-pressure boiler



March 3, 1931.

E. W. SOUTER HIGH PRESSURE BOILER Filed April 26, 1928 Patented Mar. 3, 1931 UNITED STATES EDWARD w. soUTErgioF SAN Luis oBIsPo, CALIFORNIAQs'sreivoB. or ONE-'HALF ro f GEORGE r. MOERMAN, or sAN Luis oB1sroAL1ronNIA i,

HIGH-PRESSURE BOILER Application filed April 26,

My invention relates to high pressure boilers, and it has among its salient objects to provide a simple, practical and compact high pressure boiler which can be'used for most purposes for which steam generating boilers are used; to provide a high pressure boiler of the character referred to which 'y is capable of generating steam rapidlyfand economically and in which watercan kget low without injury to the boiler; to provide a boiler `in which there is 'rapid circulation of' illustrated the saine on the accompanying sheet of drawings, which I will now describe. in the drawings l `Figure l is aside elevation of a high pressure boiler, partly in vertical section, em-

bodying my inventionand showing the 'de-v tails of construction and arrangement.

In the drawings, 2 designates an inner shell, preferably of cold drawnsteel, of substantially cylindrical form in its middle portion,

ywith a series of small tubes, 3,' 3.V An outer corrugated shell isr provided surrounding said inner shell and forming a waterV space between said shells, designated 4. The opposite ends of said inner and outer shells are brought together, as at 5, 5, and are machined to lit closely together and to fit into V-shaped grooves or channels in the inner faces of two end plates or rings, designated, 6, said V- shaped grooves being designated 6, 6. The inner shell 2, has welded'jaroundits inner side, at each end, two rings, 7, 7, and the outer shell has two similar rings welded around its outer face, at each end, and designated 8, 8, said rings beingxprovided with screw holes to receive the screw bolts, 9, 9,

f with which said end plates or rings 6, 6, are

1928. serial no. -272,92@ Y 6, it vwill be understoodthat the outer corrugated shell 4 can be removed, giving free ac-y cess to the inner shell andthe water tubes end rings 6, 6, thusfmaliingy tight joints,

firmly bound togetherand clamped in the end rings, substantially as illustrated.

A fire boX 11, is shown under the boiler, withlining of fire clay-12, or other suitable heat'resisting material. An oil burner 13, Vis also shown, but it will be understood that any suitable heat generatingmeans can be used. The heat and products of combustion pass upwardly inside of the inner shell 2, around the water tubes 3, 3,V and out through a flue 14, held in place by means of a web 15, Y secured thereto and to thevinner ring 7, as clearly illustrated.' 1A water gauge 16 is also connected with the outer shell 4, and a pressure gauge 17 is connected to the upper part of lthe outer shell, ask shown, by'means of steam pipe 18, leading to any place of use. An inlet water supply pipe 19, isalso shown connected throughv said outery shell, Aand a faucet 20, is connected therethrough with the water space 4. Y

Thus-it will be seen that I have provided a very simple and very accessible boiler of the character referred to,'and while I have shown and described one practicable embodiment of the invention, I do notlimit the invention to the details of construction and srs arrangement shown, except .as I may be limited by the hereto a Jpended claim, forming a part of Athis speci cation. I claim:

corrugated form to form water space'there-v between, the opposite ends of said shells itting closely together one within the other and '1 having rings welded to their outer sides with said ends between said .rings and projecting beyond `the same, said projecting portions be-.

ico' l ing beveled on their exterior sides, end rings or plates having grooves in their inner faces receiving the projecting ends of said shells and shaped for vvedging themV tightly to- 5 gether, screw bolts for securing said end rings to the rings Welded to the-ends oi* said Shel-ls,

Water'ltubes .in said inner shell, va .tre box under said inner shell and said Water tubes, and

a Vflue from the upperend of said inner shell, m substantially-as described. v l

Signed atY San Luis Gbispm county of San- Luis Obispo, and State of California, this 19th day of April, 1928.

EDWARD SOUTER. 

